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Author Question: Explain how methemoglobin is formed and how its presence impacts oxygen delivery. Be sure to include ... (Read 76 times)

fagboi

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on: Jun 25, 2018
Explain how methemoglobin is formed and how its presence impacts oxygen delivery. Be sure to include oxygen affinity in your answer.
 
  What will be an ideal response?

Question 2

Both hemoglobin D and G migrate with which hemoglobin on alkaline gel electrophoresis?
 
  a. S
  b. A
  c. F
  d. C


abro1885

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Reply #1 on: Jun 25, 2018
Answer to Question 1

Answer: Methemoglobin is formed by oxidation of ferrous iron to ferric iron in the hemoglobin molecule. As a result, it cannot effectively transport oxygen because of its poor oxygen affinity. Patients with this abnormal hemoglobin have cyanosis and shortness of breath as a result of poor oxygen transport.

Answer to Question 2

Correct Answer: A


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